(190311) -- LONDON, March 11, 2019 (Xinhua) -- British Prime Minister Theresa May attends the Commonwealth Day celebrations at Westminster Abbey in London, Britain, on March 11, 2019. (Xinhua/Ray Tang)

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Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend the Commonwealth Service at Westminster Abbey on Commonwealth Day. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth, with old ties and new links enabling cooperation towards social, political and economic development which is both inclusive and sustainable. The Commonwealth represents a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. MARCH 11th 2019

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Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend the Commonwealth Service at Westminster Abbey on Commonwealth Day. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth, with old ties and new links enabling cooperation towards social, political and economic development which is both inclusive and sustainable. The Commonwealth represents a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. MARCH 11th 2019

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Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend the Commonwealth Service at Westminster Abbey on Commonwealth Day. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth, with old ties and new links enabling cooperation towards social, political and economic development which is both inclusive and sustainable. The Commonwealth represents a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. MARCH 11th 2019

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Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend the Commonwealth Service at Westminster Abbey on Commonwealth Day. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth, with old ties and new links enabling cooperation towards social, political and economic development which is both inclusive and sustainable. The Commonwealth represents a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. MARCH 11th 2019

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Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex attend the Commonwealth Service at Westminster Abbey on Commonwealth Day. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth, with old ties and new links enabling cooperation towards social, political and economic development which is both inclusive and sustainable. The Commonwealth represents a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. MARCH 11th 2019

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Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend the Commonwealth Service at Westminster Abbey on Commonwealth Day. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth, with old ties and new links enabling cooperation towards social, political and economic development which is both inclusive and sustainable. The Commonwealth represents a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. MARCH 11th 2019

Britain's Kate, the Duchess of Cambridge and Britain's Prince William arrive to attend the Commonwealth Service at Westminster Abbey on Commonwealth Day in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old.(AP Photo/Frank Augstein)

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Britain's Prince Harry and Meghan Markle, the Duchess of Sussex arrive to attend the Commonwealth Service at Westminster Abbey on Commonwealth Day in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old.(AP Photo/Frank Augstein)

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Britain's Kate, the Duchess of Cambridge and Britain's Prince William arrive to attend the Commonwealth Service at Westminster Abbey on Commonwealth Day in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old.(AP Photo/Frank Augstein)

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Britain's Queen Elizabeth II leaves after attending the Commonwealth Service at Westminster Abbey on Commonwealth Day in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old.(AP Photo/Frank Augstein)

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Meghan, the Duchess of Sussex and Britain's Prince Harry leave after attending the Commonwealth Service at Westminster Abbey on Commonwealth Day in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Frank Augstein)

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Britain's Kate, Duchess of Cambridge, and Meghan, the Duchess of Sussex leave after attending the Commonwealth Service at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Kirsty Wigglesworth, Pool), APTOPIX

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Britain's Kate, Duchess of Cambridge, foreground centre, sits with Prince William, Camilla, the Duchess of Cornwall and Prince Charles, front row, Prince Andrew, background right, Meghan, the Duchess of Sussex and Prince Harry, at the Commonwealth Service at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Kirsty Wigglesworth, Pool)

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Meghan, the Duchess of Sussex and Britain's Prince Harry leave after attending the Commonwealth Service at Westminster Abbey on Commonwealth Day in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Frank Augstein)

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Britain's Queen Elizabeth II leaves after attending the Commonwealth Service at Westminster Abbey on Commonwealth Day in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Frank Augstein)

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Britain's Kate, the Duchess of Cambridge talks to a child as she and Prince William leave after attending the Commonwealth Service at Westminster Abbey on Commonwealth Day in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Frank Augstein)

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Meghan, the Duchess of Sussex and Britain's Prince Harry leave after attending the Commonwealth Service at Westminster Abbey on Commonwealth Day in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Frank Augstein)

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Britain's Prime Minister Theresa May, right, leaves after attending the Commonwealth Service at Westminster Abbey on Commonwealth Day in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Frank Augstein)

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Britain's Prime Minister Theresa May, right, and Baroness Scotland laugh after the Commonwealth Service at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Kirsty Wigglesworth, Pool)

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Britain's Prime Minister Theresa May speaks during the Commonwealth Service at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Kirsty Wigglesworth, Pool)

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Britain's Kate, Duchess of Cambridge and Meghan, Duchess of Sussex leave after attending the Commonwealth Service at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Kirsty Wigglesworth, Pool)

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Members of Britain's Royal family watch a performer during the Commonwealth Service at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Kirsty Wigglesworth, Pool)

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Britain's Kate, Duchess of Cambridge, Prince William, Camilla, the Duchess of Cornwall, Prince Charles and Queen Elizabeth II from foreground are seated at the Commonwealth Service at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Kirsty Wigglesworth, Pool)

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Britain's Kate, Duchess of Cambridge, Prince William, Camilla, the Duchess of Cornwall, Prince Charles and Queen Elizabeth II from foreground are seated at the Commonwealth Service at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Kirsty Wigglesworth, Pool)

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Britain's Kate, Duchess of Cambridge, Prince William, Camilla, the Duchess of Cornwall, Prince Charles and Queen Elizabeth II from foreground are seated at the Commonwealth Service at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Kirsty Wigglesworth, Pool)

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Britain's Kate, Duchess of Cambridge, Prince William, Camilla, the Duchess of Cornwall, Prince Charles and Queen Elizabeth II from foreground are seated at the Commonwealth Service at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Kirsty Wigglesworth, Pool)

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Britain's Royal family leave after the Commonwealth Service at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Kirsty Wigglesworth, Pool)

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A view during the Commonwealth Service at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (AP Photo/Kirsty Wigglesworth, Pool)

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Britain's Kate, the Duchess of Cambridge, foreground, and Meghan, the Duchess of Sussex greet each other as they attend the Commonwealth Service with other members of the Royal family at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (Richard Pohle/Pool Photo via AP)

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Britain's Kate, the Duchess of Cambridge, foreground, and Meghan, the Duchess of Sussex attend the Commonwealth Service with other members of the Royal family at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (Richard Pohle/Pool Photo via AP)

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Britain's Kate, the Duchess of Cambridge, foreground, and Meghan, the Duchess of Sussex attend the Commonwealth Service with other members of the Royal family at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (Richard Pohle/Pool Photo via AP)

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Britain's Prime Minister Theresa May sits, during the Commonwealth Service at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (Richard Pohle/Pool Photo via AP)

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Britain's Kate, the Duchess of Cambridge, centre, and Meghan, the Duchess of Sussex attend the Commonwealth Service with other members of the Royal family at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (Richard Pohle/Pool Photo via AP)

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From left, Britain's Kate, the Duchess of Cambridge, Prince William, Prince Harry and Meghan, the Duchess of Sussex attend the Commonwealth Service with other members of the Royal family at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (Richard Pohle/Pool Photo via AP)

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Britain's Queen Elizabeth II attends the Commonwealth Service with other members of the Royal family at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (Richard Pohle/Pool Photo via AP)

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Britain's Prince Charles, talks with Meghan, the Duchess of Sussex as they attend the Commonwealth Service with other members of the Royal family at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (Richard Pohle/Pool Photo via AP)

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Britain's Prince Harry and Meghan, the Duchess of Sussex talk with Grace Chatto part of the group "Clean Bandit" who performed as they attend the Commonwealth Service with other members of the Royal family at Westminster Abbey in London, Monday, March 11, 2019. Commonwealth Day has a special significance this year, as 2019 marks the 70th anniversary of the modern Commonwealth - a global network of 53 countries and almost 2.4 billion people, a third of the world's population, of whom 60 percent are under 30 years old. (Richard Pohle/Pool Photo via AP)

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Britain's Prince Harry, Duke of Sussex (R) and Meghan, Duchess of Sussex arrive to attend a Commonwealth Day Service at Westminster Abbey in central London, on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Ben STANSALL / AFP)

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Britain's Prince William, Duke of Cambridge (R) and Britain's Catherine, Duchess of Cambridge (L) arrive to attend a Commonwealth Day Service at Westminster Abbey in central London, on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Ben STANSALL / AFP)

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Britain's Prince William, Duke of Cambridge (R) and Britain's Catherine, Duchess of Cambridge (L) arrive to attend a Commonwealth Day Service at Westminster Abbey in central London, on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Ben STANSALL / AFP)

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Britain's Queen Elizabeth II (L) is greeted by the Dean of Westminster John Hall (R), as she arrives to attend a Commonwealth Day Service at Westminster Abbey in central London, on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Ben STANSALL / AFP)

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Britain's Queen Elizabeth II (R) and Britain's Prince Andrew, Duke of York, leave after attending a Commonwealth Day Service at Westminster Abbey in central London, on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Ben STANSALL / AFP)

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Britain's Prince William, Duke of Cambridge (3R) and Britain's Catherine, Duchess of Cambridge (C) leave after attending a Commonwealth Day Service at Westminster Abbey in central London, on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Ben STANSALL / AFP)

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Britain's Prince William, Duke of Cambridge (R) and Britain's Catherine, Duchess of Cambridge leave after attending a Commonwealth Day Service at Westminster Abbey in central London, on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Ben STANSALL / AFP)

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Britain's Prince Harry, Duke of Sussex (C) and Meghan, Duchess of Sussex (L) leave after attending a Commonwealth Day Service at Westminster Abbey in central London, on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Ben STANSALL / AFP)

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Britain's Prince Harry, Duke of Sussex (R) and Meghan, Duchess of Sussex leave after attending a Commonwealth Day Service at Westminster Abbey in central London, on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Ben STANSALL / AFP)

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Britain's Prince Harry, Duke of Sussex (R) and Meghan, Duchess of Sussex leave after attending a Commonwealth Day Service at Westminster Abbey in central London, on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Ben STANSALL / AFP)

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Britain's Meghan, Duchess of Sussex (2R) talks with Britain's Prince Charles, Prince of Wales (R) as Britain's Prince William, Duke of Cambridge, (L) talks with Britain's Prince Harry, Duke of Sussex, (2L) as they all attend the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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Britain's Meghan, Duchess of Sussex (2R) talks with Britain's Prince Charles, Prince of Wales (R), Britain's Prince William, Duke of Cambridge, (4L) talks with Britain's Prince Harry, Duke of Sussex, (5L) and Britain's Camilla, Duchess of Cornwall (2L) talks with Britain's Catherine, Duchess of Cambridge, (3L) as they all attend the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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(L-R) Britain's Prince Harry, Duke of Sussex, and Britain's Meghan, Duchess of Sussex attend the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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Britain's Meghan, Duchess of Sussex (R) and Britain's Catherine, Duchess of Cambridge, (L) attend the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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(L-R) Britain's Catherine, Duchess of Cambridge, Britain's Prince William, Duke of Cambridge, Britain's Prince Harry, Duke of Sussex, and Britain's Meghan, Duchess of Sussex attend the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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(L-R) Britain's Catherine, Duchess of Cambridge (L), talks with Britain's Meghan, Duchess of Sussex (R) as Britain's Prince William, Duke of Cambridge, and Britain's Prince Harry, Duke of Sussex, stand by attending the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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Britain's Meghan, Duchess of Sussex (L) and Britain's Catherine, Duchess of Cambridge, (R) walk the aisle to leave after attending the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Kirsty Wigglesworth / POOL / AFP)

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(L-R) Britain's Prince Harry, Duke of Sussex, Britain's Prince William, Duke of Cambridge,, Britain's Meghan, Duchess of Sussex, Britain's Prince Charles, Prince of Wales, Britain's Catherine, Duchess of Cambridge, and Britain's Camilla, Duchess of Cornwall walk the aisle to leave after attending the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Kirsty Wigglesworth / POOL / AFP)

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Britain's Meghan, Duchess of Sussex (R) and Britain's Catherine, Duchess of Cambridge, (L) attend the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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Britain's Meghan, Duchess of Sussex (L) and Britain's Catherine, Duchess of Cambridge, (R) attend the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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Britain's Prime Minister Theresa May waits to give a reading during the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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Britain's Prime Minister Theresa May attends the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Kirsty Wigglesworth / POOL / AFP)

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Britain's Queen Elizabeth II attends the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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Britain's Queen Elizabeth II attends the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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(L-R) Britain's Meghan, Duchess of Sussex and Britain's Prince Harry, Duke of Sussex, talk with British musician Grace Chatto, part of the group "Clean Bandit", who performed during the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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(L-R) Britain's Meghan, Duchess of Sussex and Britain's Prince Harry, Duke of Sussex, talk with British musician Grace Chatto, part of the group "Clean Bandit", who performed during the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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(L-R) Britain's Meghan, Duchess of Sussex and Britain's Prince Harry, Duke of Sussex, talk with British musician Grace Chatto, part of the group "Clean Bandit", who performed during the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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(L-R) Britain's Catherine, Duchess of Cambridge, talks with British musician Grace Chatto, part of the group "Clean Bandit", who performed during the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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Britain's Queen Elizabeth II, Britain's Prince Andrew, Duke of York, Britain's Prince Harry, Duke of Sussex, Britain's Prince William, Duke of Cambridge,, Britain's Meghan, Duchess of Sussex, Britain's Prince Charles, Prince of Wales, Britain's Catherine, Duchess of Cambridge, and Britain's Camilla, Duchess of Cornwall walk the aisle to leave after attending the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Kirsty Wigglesworth / POOL / AFP)

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Britain's Queen Elizabeth II, Britain's Prince Harry, Duke of Sussex, Britain's Prince William, Duke of Cambridge,, Britain's Meghan, Duchess of Sussex, Britain's Prince Charles, Prince of Wales, Britain's Catherine, Duchess of Cambridge, and Britain's Camilla, Duchess of Cornwall walk the aisle to leave after attending the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Kirsty Wigglesworth / POOL / AFP)

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(L-R) Britain's Queen Elizabeth II leads Britain's Prince Charles, Prince of Wales, Britain's Camilla, Duchess of Cornwall, Britain's Prince William, Duke of Cambridge,, Britain's Catherine, Duchess of Cambridge,, Britain's Prince Harry, Duke of Sussex, and Britain's Meghan, Duchess of Sussex in procession during the Commonwealth Day service at Westminster Abbey in London on March 11, 2019. - Britain's Queen Elizabeth II has been the Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. (Photo by Richard Pohle / POOL / AFP)

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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The Royal Family attend the Commonwealth Day service at Westminster Abbey London. 11 Mar 2019 Pictured: The Royal Family and Theresa May attend the Commonwealth day service at Westminster Abbey London. Photo credit: stephenbutler / MEGA TheMegaAgency.com +1 888 505 6342

World Rights

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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Kate and Prince William, The Duke and Duchess of Cambridge

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The Royal Family attend the Commonwealth Day service at Westminster Abbey London. 11 Mar 2019 Pictured: The Royal Family and Theresa May attend the Commonwealth day service at Westminster Abbey London. Photo credit: stephenbutler / MEGA TheMegaAgency.com +1 888 505 6342

World Rights

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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Kate and Prince William, The Duke and Duchess of Cambridge

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HM Queen Elizabeth II

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with members of the British Royal family.

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Kate and Prince William, The Duke and Duchess of Cambridge

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Kate and Prince William, The Duke and Duchess of Cambridge

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Kate and Prince William, The Duke and Duchess of Cambridge

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Kate and Prince William, The Duke and Duchess of Cambridge

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Camilla, Duchess of Cornwall.

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Camilla, Duchess of Cornwall.

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Camilla, Duchess of Cornwall.

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Camilla, Duchess of Cornwall.

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HM Queen Elizabeth II

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HM Queen Elizabeth II

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Theresa May, Prime Minister arrives with members of the British Royal family.

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Kate and Prince William, The Duke and Duchess of Cambridge

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Kate and Prince William, The Duke and Duchess of Cambridge

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Meghan and Prince Harry, The Duke and Duchess of Sussex arrive with members of the British Royal family.

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Meghan and Prince Harry, The Duke and Duchess of Sussex arrive with members of the British Royal family.

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Meghan and Prince Harry, The Duke and Duchess of Sussex arrive with members of the British Royal family.

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Meghan and Prince Harry, The Duke and Duchess of Sussex arrive with members of the British Royal family.

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Meghan and Prince Harry, The Duke and Duchess of Sussex arrive with members of the British Royal family.

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Meghan, Duchess of Sussex arrives with members of the British Royal family.

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Meghan and Prince Harry, The Duke and Duchess of Sussex arrive with members of the British Royal family.

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Camilla, Duchess of Cornwall.

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Camilla, Duchess of Cornwall.

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Meghan Markle, Duchess of Sussex. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Picture by Richard Pohle/WPA-Pool. 11 Mar 2019 Pictured: Meghan Markle, Duchess of Sussex, Catherine, Duchess of Cambridge, Kate Middleton. Photo credit: MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Meghan Markle, Duchess of Sussex. Prince Harry, Duke of Sussex. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Catherine, Duchess of Cambridge, Kate Middleton. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Picture by Richard Pohle/WPA-Pool. 11 Mar 2019 Pictured: Catherine, Duchess of Cambridge, Kate Middleton, Meghan Markle, Duchess of Sussex. Photo credit: MEGA TheMegaAgency.com +1 888 505 6342

Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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The Royal Family attend the Commonwealth Day service at Westminster Abbey London. 11 Mar 2019 Pictured: The Royal Family and Theresa May attend the Commonwealth day service at Westminster Abbey London. Photo credit: stephenbutler / MEGA TheMegaAgency.com +1 888 505 6342

World Rights

EN_01367137_0038

The Royal Family attend the Commonwealth Day service at Westminster Abbey London. 11 Mar 2019 Pictured: The Royal Family and Theresa May attend the Commonwealth day service at Westminster Abbey London. Photo credit: stephenbutler / MEGA TheMegaAgency.com +1 888 505 6342

World Rights

EN_01367137_0039

Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

NO United Kingdom

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Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. 11 Mar 2019 Pictured: Members of The Royal Family attend the Commonwealth Service on Commonwealth Day, at Westminster Abbey, London, UK, on the 11th March 2019. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342